Could you look at my pictures? (click below?) There is a pic of Daisy at the park with a leash and harness.
i got those from Petco. Actually, i put them on on Daisy, in case she decided to go wandering off herself. So, for precautionary measure, i put on a leash and a harness on her.
i think kitties react differently to leash and harness. With Daisy, i can tell she is not that crazy about it. However, i guess she did not struggle much at the park, as it was a thrill for her to see the vaste green land, and to watch so many birds at one time!
i practiced walking her with a leash and harness at home. You know, just put on the leash and harness and walk her around the house.
With Venus, i have yet to try those things on her. We take them out pretty frequently : short car rides to grocery stores, kitty shopping, restaurants, and i only put on their collars with tags.
Oh yes, it is important to MICROCHIP your kitty as well (in case your kitty runs away and found by someone else, it is easier to trace You (THE OWNER) that way.)
So, in conclusion, you could try it at home, and a little outside. If your kitty struggles and seems unhappy, you know it is a no-no.
Only personal opinions that i am airing, of course ...